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src/engine/scoring.py

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+def calculate_score(fan: int, base_score: int, is_self_draw: bool, is_dealer: bool) -> dict:
+    """
+    根据番数和底分计算总分。
+
+    参数:
+    - fan: 总番数。
+    - base_score: 底分。
+    - is_self_draw: 是否为自摸。
+    - is_dealer: 是否为庄家。
+
+    返回:
+    - scores: 一个字典，包含所有玩家的得分。
+        - "winner": 胜利者的得分（正数）。
+        - "loser": 输家们的得分（负数）。
+    """
+    # 计算总分 = 底分 * (2 ** 番数)
+    total_score = base_score * (2 ** fan)
+
+    if is_self_draw:
+        # 自摸，其他三家平摊
+        if is_dealer:
+            # 庄家自摸，三家平摊且输家每人付总分
+            loser_score = -total_score
+            winner_score = total_score * 3
+            return {
+                "winner": winner_score,
+                "loser": [loser_score] * 3
+            }
+        else:
+            # 闲家自摸，庄家付双倍，其他两家付单倍
+            dealer_loss = -total_score * 2
+            other_loss = -total_score
+            winner_score = total_score * 4
+            return {
+                "winner": winner_score,
+                "loser": [dealer_loss, other_loss, other_loss]
+            }
+    else:
+        # 点炮，点炮者独付
+        if is_dealer:
+            # 庄家点炮
+            loser_score = -total_score
+            winner_score = total_score
+            return {
+                "winner": winner_score,
+                "loser": [loser_score, 0, 0]
+            }
+        else:
+            # 闲家点炮
+            loser_score = -total_score
+            winner_score = total_score
+            return {
+                "winner": winner_score,
+                "loser": [loser_score, 0, 0]
+            }